u' U' r'
x' r' F r y U' l' U l R2 u U' r U' U' r'
R2 u2 y' R
y2 R' D R u' y' U R'
y U R (x y')
U' 3r U' U' r
3r U r' r 3r' r U U r' U U r2 U' r2'
3r U U' U r U r' 3r
(y' x') U 3u' D U R' R2 U' R' u'
U R U' R' u R2
u U' y U' L' U L
U' y U' L' U L
U F R' F' R u'
U' F R' F' R u
U' U' R U' R' u'
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U' F R' F' R u'
U' R R' U R U' R' L U L'
R U' R' U y' U R' U' R
y' R' U' R U R' U' R
L' U L y' U R U R'
R' R2 U R' U R U' R' U' R' F R F'
U' [U' R' U R U' : r 2R R' U U r 2R R' u u r 2R R' u2 U2]